Efficient Clutter Cancellation Algorithm Based on a Suppressed Clutter Map for FMCW Radar Systems

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of electromagnetic engineering and science Pub Date : 2023-07-13 DOI:10.26866/jees.2023.5.l.16

Bong-seok Kim, Youngseok Jin, Jieun Bae, E. Hyun

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引用次数: 0

Abstract

This paper proposes an efficient clutter cancellation algorithm based on suppressed clutter map for frequency-modulated continuous wave radar systems. In conventional clutter cancellation algorithms based on clutter maps, range-Doppler maps are employed. However, if the radar cross section (RCS) of the targets is significantly lower than the RCS of the clutter, a problem may occur in that the targets may also be removed in the clutter-removal process. To solve this problem, the proposed algorithm creates a range-Doppler map to which the moving target indicator (MTI) algorithm is applied instead of the general range-Doppler map that does not include the MTI algorithm. The range-Doppler map, used after applying the clutter suppression filter, significantly reduces the clutter removal effect on targets in which RCS is relatively weak by suppressing the effect of relatively dominant clutter signals. The experimental results showed that the proposed algorithm detects weak targets that remain undetected by the existing map-based clutter-removal algorithm.

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FMCW雷达系统中基于抑制杂波映射的高效杂波消除算法

针对调频连续波雷达系统，提出了一种基于抑制杂波映射的有效杂波消除算法。在传统的基于杂波图的杂波消除算法中，使用了距离多普勒图。然而，如果目标的雷达截面积（RCS）显著低于杂波的RCS，则可能会出现在杂波去除过程中也可能去除目标的问题。为了解决这个问题，所提出的算法创建应用了移动目标指示符（MTI）算法的距离多普勒图，而不是不包括MTI算法的一般距离多普勒图。在应用杂波抑制滤波器后使用的距离多普勒图，通过抑制相对主导的杂波信号的影响，显著降低了对RCS相对较弱的目标的杂波去除效果。实验结果表明，该算法能够检测出现有基于地图的杂波去除算法未检测到的弱目标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.90

自引率

17.40%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.